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http://dx.doi.org/10.12772/TSE.2021.58.177

Evaluation of Rheological Properties of Polytetrafluoroethylene/Isoparaffin  

Im, Yeong Min (Department of Advanced Organic Materials, Yeungnam University)
Kim, Sung Chul (Komemtec)
Lee, Gang Wook (Komemtec)
Jang, Yong (Komemtec)
Oh, Tae Hwan (Department of Advanced Organic Materials, Yeungnam University)
Publication Information
Textile Science and Engineering / v.58, no.4, 2021 , pp. 177-182 More about this Journal
Abstract
The effect of isoparaffin on the rheological properties of polytetrafluoroethylene (PTFE) was investigated. PTFE/isoparaffin paste was prepared for two different types of isoparaffin, that is, Isopars G and M, which can be used as PTFE lubricants. Molecular dynamics (MD) simulations were applied to investigate the effect of the lubricants on the zero-shear viscosity of the PTFE/isoparaffin system. The Green-Kubo relationship was used to obtain the zero-shear viscosity through the MD simulations. In the relationship, the autocorrelation function of the shear stress was calculated and integrated over time. The shear viscosity of PTFE/Isopar G was lower than that of PTFE/Isopar M, corresponding to the experimental results.
Keywords
PTFE; isoparffin; lubricant; molecular dynamics simulation; shear viscosity;
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